The old WunderMap, if left in static mode, would update every few minutes. The new WunderMap does not; the same radar image remains until either the browser is refreshed or the site errors out losing the radar layer, and requiring a refresh.
The Radar image should update by itself even when not animating. Can you tell me which browser are you using?
Though, I have noticed that the Radar does not update if I leave WunderMap open in a background tab for a few hours or more. In that case, the best solution right now is to refresh the page. I realize that this is not ideal, and we will soon look into fixing this.
I'm having the same problem, in Firefox 29.0.1 on Windows XP. Switching to another tab seems to stop the automatic refresh. Will try Chrome to see if it works any better.
You can change the map type to Road Map, Light Map or Dark Map which does not show terrain details (like mountains). This option can be found under the settings menu (gear icon) to the top-right corner of WunderMap. Let me know if that helps.
frankly, I hate the new version. How do I go back to just seeing the map without the mountains?